Wireless interconnects at low to medium speeds (below 1 Gbps) allow efficient state exchange (power states, thermal throttling states, performance states, component profile deviation), system process control (power states, tuning optimization, emergency triggers for power delivery, and so on), platform test and debug in an isolated environment, on-board component testing, and cooperative tuning and control. Read More
Conventional metal wiring is becoming an inevitable difficulty for the future management of the computing platform. This article presents an ultra-wideband (UWB) wireless interconnect solution. The channel characteristics within a computer chassis are analyzed, including the path loss, multipath reflections, and electromagnetic interferences (EMI). To address the above problems, two prototypes of impulse-radio ultra-wideband (IR-UWB) transceivers are proposed. The first prototype has advantage in power consumption and simplicity and is suitable for low data rate communications; however, it ignores the inevitable frequency offset between transmitter and receiver baseband clocks. In the second prototype, pulse injection-locking is employed for receiver clock recovery and
synchronization and an equalizer is introduced in the transmitter to relax the multipath reflections. The second prototype is more suitable for high data rate communications.
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